Wakanda and Atlantis have a very storied rivalry in Marvel Comics. Ironically both Atlantis and Wakanda have many similarities.
Atlantis and Wakanda are both hidden civilizations that are far advanced in technology than the rest of the world. I would not be surprised if Marvel Studios explores the rivalry of Wakanda and Atlantis on the big screen at some point in the future.
Avengers Assemble Season 5 shows the rivalry of Wakanda and Atlantis across a few episodes. The show is available on Disney Plus.